+# Basic Installation
+
This page contains generic installation instructions for Nominatim and its
prerequisites. There are also step-by-step instructions available for
the following operating systems:
- * [Ubuntu 16.04](../appendix/Install-on-Ubuntu-16.md)
- * [CentOS 7.2](../appendix/Install-on-Centos-7.md)
+ * [Ubuntu 24.04](Install-on-Ubuntu-24.md)
+ * [Ubuntu 22.04](Install-on-Ubuntu-22.md)
These OS-specific instructions can also be found in executable form
in the `vagrant/` directory.
* [Docker](https://github.com/mediagis/nominatim-docker)
* [Docker on Kubernetes](https://github.com/peter-evans/nominatim-k8s)
+ * [Kubernetes with Helm](https://github.com/robjuz/helm-charts/blob/master/charts/nominatim/README.md)
* [Ansible](https://github.com/synthesio/infra-ansible-nominatim)
-# Prerequisites
-
-## Software
-
-For compiling:
+## Prerequisites
- * [cmake](https://cmake.org/)
- * [libxml2](http://xmlsoft.org/)
- * a recent C++ compiler
+### Software
-Nominatim comes with its own version of osm2pgsql. See the
-osm2pgsql README for additional dependencies required for compiling osm2pgsql.
+For running Nominatim:
-For running tests:
+ * [PostgreSQL](https://www.postgresql.org) (12+ will work, 13+ strongly recommended)
+ * [PostGIS](https://postgis.net) (3.0+ will work, 3.2+ strongly recommended)
+ * [osm2pgsql](https://osm2pgsql.org) (1.8+, optional when building with CMake)
+ * [Python 3](https://www.python.org/) (3.7+)
- * [behave](http://pythonhosted.org/behave/)
- * [Psycopg2](http://initd.org/psycopg)
- * [nose](https://nose.readthedocs.io)
- * [phpunit](https://phpunit.de)
+Furthermore the following Python libraries are required:
-For running Nominatim:
+ * [Psycopg3](https://www.psycopg.org)
+ * [Python Dotenv](https://github.com/theskumar/python-dotenv)
+ * [psutil](https://github.com/giampaolo/psutil)
+ * [Jinja2](https://palletsprojects.com/p/jinja/)
+ * [PyICU](https://pypi.org/project/PyICU/)
+ * [PyYaml](https://pyyaml.org/) (5.1+)
+ * [datrie](https://github.com/pytries/datrie)
- * [PostgreSQL](http://www.postgresql.org) (9.1 or later)
- * [PostGIS](http://postgis.refractions.net) (2.0 or later)
- * [PHP](http://php.net) (5.4 or later)
- * PHP-pgsql
- * PHP-intl (bundled with PHP)
- * [PEAR::DB](http://pear.php.net/package/DB)
- * a webserver (apache or nginx are recommended)
+These will be installed automatically when using pip installation.
For running continuous updates:
- * [pyosmium](http://osmcode.org/pyosmium/)
+ * [pyosmium](https://osmcode.org/pyosmium/)
-## Hardware
+For running the Python frontend:
-A minimum of 2GB of RAM is required or installation will fail. For a full
-planet import 32GB of RAM or more strongly are recommended.
+ * [SQLAlchemy](https://www.sqlalchemy.org/) (1.4.31+ with greenlet support)
+ * [asyncpg](https://magicstack.github.io/asyncpg) (0.8+, only when using SQLAlchemy < 2.0)
+ * one of the following web frameworks:
+ * [falcon](https://falconframework.org/) (3.0+)
+ * [starlette](https://www.starlette.io/)
+ * [uvicorn](https://www.uvicorn.org/)
+
+For dependencies for running tests and building documentation, see
+the [Development section](../develop/Development-Environment.md).
-For a full planet install you will need about 600GB of hard disk space (as of
-January 2017, take into account that the OSM database is growing fast). SSD disks
-will help considerably to speed up import and queries.
+### Hardware
-On a 6-core machine with 32GB RAM and SSDs the import of a full planet takes
-a bit more than 2 days. Without SSDs 7-8 days are more realistic.
+A minimum of 2GB of RAM is required or installation will fail. For a full
+planet import 128GB of RAM or more are strongly recommended. Do not report
+out of memory problems if you have less than 64GB RAM.
+For a full planet install you will need at least 1TB of hard disk space.
+Take into account that the OSM database is growing fast.
+Fast disks are essential. Using NVME disks is recommended.
-# Setup of the server
+Even on a well configured machine the import of a full planet takes
+around 2.5 days. When using traditional SSDs, 4-5 days are more realistic.
-## PostgreSQL tuning
+## Tuning the PostgreSQL database
You might want to tune your PostgreSQL installation so that the later steps
make best use of your hardware. You should tune the following parameters in
your `postgresql.conf` file.
- shared_buffers (2GB)
- maintenance_work_mem (10GB)
- work_mem (50MB)
- effective_cache_size (24GB)
+ shared_buffers = 2GB
+ maintenance_work_mem = (10GB)
+ autovacuum_work_mem = 2GB
+ work_mem = (50MB)
synchronous_commit = off
- checkpoint_segments = 100 # only for postgresql <= 9.4
- checkpoint_timeout = 10min
+ max_wal_size = 1GB
+ checkpoint_timeout = 60min
checkpoint_completion_target = 0.9
+ random_page_cost = 1.0
+ wal_level = minimal
+ max_wal_senders = 0
The numbers in brackets behind some parameters seem to work fine for
-32GB RAM machine. Adjust to your setup.
-
-For the initial import, you should also set:
-
- fsync = off
- full_page_writes = off
+128GB RAM machine. Adjust to your setup. A higher number for `max_wal_size`
+means that PostgreSQL needs to run checkpoints less often but it does require
+the additional space on your disk.
-Don't forget to reenable them after the initial import or you risk database
-corruption. Autovacuum must not be switched off because it ensures that the
-tables are frequently analysed.
+Autovacuum must not be switched off because it ensures that the
+tables are frequently analysed. If your machine has very little memory,
+you might consider setting:
-## Webserver setup
+ autovacuum_max_workers = 1
-The `website/` directory in the build directory contains the configured
-website. Include the directory into your webbrowser to serve php files
-from there.
+and even reduce `autovacuum_work_mem` further. This will reduce the amount
+of memory that autovacuum takes away from the import process.
-### Configure for use with Apache
+## Downloading and building Nominatim
-Make sure your Apache configuration contains the required permissions for the
-directory and create an alias:
+### Downloading the latest release
- <Directory "/srv/nominatim/build/website">
- Options FollowSymLinks MultiViews
- AddType text/html .php
- DirectoryIndex search.php
- Require all granted
- </Directory>
- Alias /nominatim /srv/nominatim/build/website
+You can download the [latest release from nominatim.org](https://nominatim.org/downloads/).
+The release contains all necessary files. Just unpack it.
-`/srv/nominatim/build` should be replaced with the location of your
-build directory.
+### Downloading the latest development version
-After making changes in the apache config you need to restart apache.
-The website should now be available on http://localhost/nominatim.
+If you want to install latest development version from github:
-### Configure for use with Nginx
+```
+git clone https://github.com/osm-search/Nominatim.git
+```
-Use php-fpm as a deamon for serving PHP cgi. Install php-fpm together with nginx.
+The development version does not include the country grid. Download it separately:
-By default php listens on a network socket. If you want it to listen to a
-Unix socket instead, change the pool configuration (`pool.d/www.conf`) as
-follows:
+```
+wget -O Nominatim/data/country_osm_grid.sql.gz https://nominatim.org/data/country_grid.sql.gz
+```
- ; Comment out the tcp listener and add the unix socket
- ;listen = 127.0.0.1:9000
- listen = /var/run/php5-fpm.sock
+### Building Nominatim
- ; Ensure that the daemon runs as the correct user
- listen.owner = www-data
- listen.group = www-data
- listen.mode = 0666
+Nominatim is easiest to run from its own virtual environment. To create one, run:
-Tell nginx that php files are special and to fastcgi_pass to the php-fpm
-unix socket by adding the location definition to the default configuration.
+ sudo apt-get install virtualenv
+ virtualenv /srv/nominatim-venv
- root /srv/nominatim/build/website;
- index search.php index.html;
- location ~ [^/]\.php(/|$) {
- fastcgi_split_path_info ^(.+?\.php)(/.*)$;
- if (!-f $document_root$fastcgi_script_name) {
- return 404;
- }
- fastcgi_pass unix:/var/run/php5-fpm.sock;
- fastcgi_index search.php;
- include fastcgi.conf;
- }
+To install Nominatim directly from the source tree into the virtual environment, run:
-Restart the nginx and php5-fpm services and the website should now be available
-at `http://localhost/`.
+ /srv/nominatim-venv/bin/pip install packaging/nominatim-{db,api}
-Now continue with [importing the database](Import-and-Update.md).
+Now continue with [importing the database](Import.md).
projects / nominatim.git / blobdiff